Joint-packing strip.



J. F. WHITE. JosNT PACKING STRIP.

APPLICATION FILED SEPT.6. |916.

1993.@9575. Patented Jn. 2, 1917.

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JCHN F. WHITE, or CHICAGO, ILLINOIS, Assreivoa 'ro LUELLA Ait WHITE, or CHICAGO,

e ILLINOIS. 1'

JOINT-PACKING STRIP.

Specification of Letters Patent.

Application filed September 6, 1916. Serial No. 118,646.

ble and inexpensive packing strip for application to relatively movable joints such as union joints found in automobile structures, especially the joints which occur between the body and the chassis of such machines. Heretofore it 'has been customary to pack the joints between the'A parts of automobilesv with a view of preventing squeaking with av felt or rubber substance both of which are somewhat expensive and soon break down and wear out.

The present invention contemplates the formation of a packing strip of a relatively inexpensive canvas or duck material so formed and treated that it will constitute a proper packing` having the requisite frictioni'/.ing characteristic and pronounced wearing qualities. l

A further object of the invention is that of the provision ofl a packing strip for the purpose as above stated which can be made in sheets, contain the proper constituents to render the same waterproof and antisqueaky or frictional.

ln the accompanying drawings, there is shown in Figure 1, somewhat enlarged, a. sheet of packing material embodying the invention; Fig. 2 represents a packing strip embodying the invention.

In carrying out the invention, canvas or duckis conveniently employed, and this by preference is cut orwoven on the bias leaing a proper selvage edge. Material of this` character, as illustrated in Fig. l, at is by preference formed with one of its surfaces fleeced or mapped. Such material is commonly referred to as napped duck or canvas.

The material is immersed,'preferably in sheet form, in a tank or container having therein a frictioning material such as asphaltum or what is commonly known as an asphaltum paint.

The material or treating substance isinthe first instance thinned by applying or adding thereto a relatively small quantity of a solvent, such as benzin or naphtha,the mass being first heated so that a ready mixture of the solvent with the asphalturn base or material will be quickly effective. in this condition the material is somewhat of a consistency of mixed paint and the canvas or cloth is immersed in the bath andallowed to remain until the same becomesthoroughly saturated with the mixture. The canvas is then .removed from the bath, 'slightly scraped off to remove unnecessary adhering material, after which it is :hu-ng up to dry and within a few hours the twill or smooth Patented dan. 2, i917 side'of the cloth is dry enough so that the material can be readily handled without sticking. In this condition the nap or eecy side of the material carries a large percentage of the treating material which is in a tacky or sticky state. rlhe material is now folded upon itself, the fleecy side innermost and is passed between squeezing rolls, thus causing the, fieecy surfaces to firmly adhere. leaving the strip of frictionized duck or canvas in a proper condition to serve as a packing strip. The strips may be of any convenient width and are preferably cut in the proper strip formation varying from one quarter to two inches in width and is ready for use.

A strip of this character is found to possess many advantageous qualities, it representing a frictional material which prevents squeaking and constitutes .a packing having a. certain amount of yieldability. This latter characteristic is produced by the combined fleecy surfaces.

it has been found desirable, for certain purposes, to sever the treatedfstriv in widths substantially twice the Width deslred for the finished article and then to turn the edges over with the fieecy side innermost until the edges meet at the center of the strip, as shown in Fig. 2 at B. "in this position it may be desirable to stitch the edges, as indicated. at C dotted ines., Fig. 2, the stitching passing through both faces of the ma" terial. in this connection the stitched form is useful in packing the joints between the hoods of automobile engines and the adja cent parts. rlhe material may also be formed to represent what is new known as hood lacings, in which instances the strips would be somewhat vnarrower than those shown in Fig. 2.

In many instancesv it will be found that thejfolded strips can be employed, as shown in Fig. 2' of 4the drawings, without the stitches, the edges of the folded parts being brought close together and the whole subjected to the action of squeezing rolls.

It has been found that the packing strips,

.as above described, serve the purposes of the yielding felt and rubber strips but are much more durable and less expensive. characteristic of the material adds the iieXibility found in the other types of strips and also serves to bind the folded parts tightlytogether owing to the superabundance of tacky treated material carried by the fleecy surfaces.

lleeced or woven fabric impregnated with frictionizing material.-

Having thus describedv the invention, what is claimed. is: y

1. A packing strip composed of superimposed layers of a fleeced surface fabric limpregnated `4with `frictionizing substance.

2. A packing strip comprising a ieeced surface fabric impregnated with a friction-V izing substance folded with the fieeced surfaces innermost and compressed. 3. A packing strip composed of. a strip of fleec-ed substance impregnated with an adhesive frictio-nizing substance and folded with the fleecy surfaces innermost.

, 4. A packing strip composed-of a folded strip of leeced fabric impregnated with a substance containing asphaltum.

5. A packing strip comprising a strip of fabric having a fleecy surface, the edges of the fabric being folded inward toward the center of the strip and the strip being impregnated with a Water-proof frictioning substance. The fleecyf" 6. A packing strip comprising a strip of fabric having a ieecy surface impregnated with a water-proof tacky substance, the

ledges of' the `strip being folded onto the body ofthe strip with thel ieecy surface innermost and pressed together. a

7. A packing strip comprising a strip of fabric having a fleecy surface impregnated with a water-proof tacky substance, the

edges of the strip being folded .onto theabody p vof the strip with the fleecy surface innermost and stitched together. i

8. A packing strip comprising astrip of fabrichaving afleecyA surface impregnated' with a water-proof tacky substance, thev edges of the strip being folded onto the body of the strip with the ieecy surface innermost and stitched together and to the body.

9. A packing strip composed-of laminated v strips of ieecy fabric,-the fleecy surfaces of which are arranged in contact with each other, the various strips being impregnated with a water proofing substance having a tacky characteristic and pressed together.

In testimony whereof I hereunto affix my signature in the presence of two Witnesses.

JOHN F. WHITE. Witnesses:

A. B. FALCH,

' ELLA FALGH. 

